MILLARD FILLMORE.

WASHINGTON CITY, July 1, 1852.

To the Senate of the United States: 

On the 26th ultimo I received a resolution of the Senate, passed in executive session, in the following words: 

Resolved, That the President of the United States be requested to inform the Senate, if not in his opinion incompatible with the public interest, whether any convention or compact has been entered into on the part of the United States and the Government of Great Britain whereby the two Governments jointly recommend or advise the Republics of Costa Rica and Nicaragua, or either of those Republics, and the Mosquito Indians, inhabiting the Mosquito Coast, in Central America, on matters affecting their several and respective boundaries, or whereby any recommendation or advice is given to either of said Republics or said Indians respecting the territorial rights thereafter to be enjoyed or observed by them respectively, or in any other manner affecting or regulating the relations hereafter to be maintained between said Republics themselves, or either of them, and the said Indians concerning their territorial boundaries or other matters thereto appertaining.  And if there be any such convention or compact, then that the President be requested to communicate the same, or a copy thereof, to the Senate, and to inform the Senate whether the same was made at the request or invitation of either of said Republics or of said Indians, or with their privity, approbation, or consent.  And that the President be further requested to communicate to the Senate copies of all correspondence between the Executive and Great Britain, or with either of said Republics of Central America, touching said convention, and of all documents connected therewith.  And if such convention or compact has been made, that the President be further requested to inform the Senate whether the same has been formally communicated to the respective Governments of Nicaragua and Costa Rica and the Mosquito Indians on the part of the Governments of Great Britain and the United States, and in what form such communications have been made to them, and that he lay before the Senate copies of any instructions that have been given to the representatives or agents of the United States at Nicaragua and Costa Rica touching such convention and the matters therein contained, with copies of like instructions to any naval officer of the United States relating to or in any manner concerning the said convention or its communication to said Republics or said Indians.

On the same day I returned the following answer to that resolution: